Mithril

Real-time procedural geology: 27 minerals, structural physics, and million-year simulation — pure Rust, running in your browser

Cave Generator

Seed

X Y Z

Keep Camera Position

Presets

HOW TO EXPLORE Left-click on the cave to mine (carve rock)
Right-click + drag to orbit camera
Scroll to zoom in/out
Change seed and hit Generate for a new cave

Tool Size 3

Noise Settings

Cavern Frequency Cavern Threshold Detail Octaves Detail Persistence Warp Amplitude

Worm Settings

Worms Per Region Radius Min Radius Max Step Length Max Steps Falloff Power

Mesh Quality

Chunk Size Max Edge Length Ore Detail Multiplier Ore Protrusion

Ore Settings

Host Rock Layers depth-layered geology

Sandstone Depth Granite Depth Basalt Depth Slate Depth

Banded Iron horizontal sine-wave layers

Band Frequency Noise Frequency Perturbation Threshold

Sedimentary Host Surface Thinning

Copper dendritic branching tendrils

Frequency Threshold

Supergene Enrichment Porphyry Contact

Malachite deep green indicator zones

Frequency Threshold

Oxidation Front

Kimberlite Pipe rare vertical intrusions

Pipe Frequency Pipe Threshold Diamond Frequency Diamond Threshold

Carrot Taper Depth Grading

Sulfide Blob massive irregular deposits

Frequency Threshold Tin Threshold

Gossan Cap Disseminated Halo

Pyrite indicator halo near ores

Frequency Threshold

Ore Association

Quartz reef veins hosting gold

Frequency Threshold

Planar Veins

Gold within quartz reef

Threshold

Bonanza Zones

Geode crystal-lined hollow pockets

Frequency Center Threshold Shell Thickness Hollow Factor

Volcanic Host Depth Scaling

Coal Seams layered sedimentary deposits

Frequency Threshold Depth Min Depth Max

Sedimentary Host Shallow Ceiling Depth Enrichment

Pool Settings

Enabled Placement Frequency Placement Threshold Pool Chance Min Area Max Radius Basin Depth Rim Height Water % Lava % Empty % Min Air Above Max Cave Height Min Floor Thickness Min Ground Depth Max Y Step Footprint Y Tolerance

Formation Settings

Enabled Placement Frequency Placement Threshold Stalactite Chance Stalagmite Chance Flowstone Chance Column Chance Column Max Gap Length Min Length Max Radius Min Radius Max Max Radius Column Radius Min Column Radius Max Flowstone Length Min Flowstone Length Max Flowstone Thickness Min Air Gap Min Clearance Smoothness

Mega-Columns

Chance Min Gap Radius Min Radius Max Noise Strength Ring Frequency

Draperies

Chance Length Min Length Max Wave Frequency Wave Amplitude

Rimstone Dams

Chance Dam Height Min Dam Height Max Pool Depth Min Slope

Cave Shields

Chance Radius Min Radius Max Max Tilt Stalactite Chance

Cauldrons

Chance Radius Min Radius Max Depth Lip Height Rim Stal Min Rim Stal Max Rim Stal Scale Floor Noise Water Chance Lava Chance

Stress & Collapse

Stress Tuning real-time structural stress

Gravity Weight Lateral Support Vertical Support Propagation Radius Max Collapse Volume

Sleep Collapse geological time degradation

Slate Strut Survival Granite Strut Survival Limestone Strut Survival Copper Strut Survival Iron Strut Survival Steel Strut Survival Crystal Strut Survival Stress Multiplier Max Cascade Rubble Fill Ratio

Geological Time Simulation

Simulates 1.25 million years of geological processes: metamorphism, hydrothermal veins, contact aureoles, acid dissolution, and structural collapse.

Tip: Switch the Tool to "Place Lava" and click the cave walls to inject magma. Lava creates contact aureoles — heat transforms surrounding limestone into marble and skarn, slate into hornfels, and deposits garnet and diopside. Place water near lava to form hydrothermal pockets that drive vein mineralization.

Limestone Sandstone Granite Basalt Slate Marble Iron Copper Malachite Tin Sulfide Pyrite Quartz Gold Kimberlite Diamond Amethyst Crystal Coal Hornfels Garnet Diopside Gypsum Skarn Water Pool Lava Pool

Generating a 6×6×6 procedural cave (216 chunks)